Home / 1,513,964.36-2,087,100.66-1,191,115.40

Finding the Fourth Proportional to 1,513,964.36, 2,087,100.66 and 1,191,115.40

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Solution

The fourth proportional to 1,513,964.36, 2,087,100.66 and 1,191,115.40 is: 1,642,031.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,513,964.36 : 2,087,100.66 = 1,191,115.40 : x
  2. Step 2: Convert to fraction form
    1,513,964.36/2,087,100.66 = 1,191,115.40/x
  3. Step 3: Cross multiply
    1,513,964.36x = 2,087,100.66 × 1,191,115.40
  4. Step 4: Simplify right side
    1,513,964.36x = 2,485,977,737,476.16
  5. Step 5: Solve for x
    x = 2,485,977,737,476.16/1,513,964.36
  6. Step 6: Final answer
    x = 1,642,031.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.